The structure of your being becomes like ooze. You maintain the size you are currently are. You gain immunity to piercing, slashing and bludgeoning damage, but vulnerability to acid and fire damage.
While in this form, as a bonus action, you can try to engulf a creature of your size or smaller into your new form for 1 round. If you choose to grapple them and they fail then they are engulfed in your form, you can choose to deal 3d6 acid damage to them whilst grappled. The damage dealt this way you heal for.
